To share a configuration edit it and then click on

The following window will open

You can start searching for a user via email or name (min 3 chars to start the search).

Only the first 10 most relevant results will be shown and for privacy reasons, only name (with internal ID) and photo will be shown. The email address is not shown.

Like the following case.

If you click on "share" a copy of your configuration will be shared with that user so both of them could continue to modify the configuration without interfering with one another.

If you have a friend who is not using MT4Professional you can invite him and get a referral: